How to Color Your Report? By Xuefeng Yu, Celgene Co., Summit, NJ

Transcription

1 How to Color Your Report? By Xuefeng Yu, Celgene Co., Summit, NJ ABSTRACT A colorful report with highlighted background or bright color numbers will greatly facilitate the reviewer to identify the flags, the special values, conditions, or outliers. SAS has provided various ways to make it an easy task. This article summarizes the different methods to produce a colorful report, for example, by using PROC FORMAT, PROC REPORT, or using ODS Style definitions. SAS codes and data examples and the result outputs are given to illustrate the programming ideas. INTRODUCTION This paper presents a few different ways to construct a colorful PDF report using ODS, PROC REPORT, PROC FORMAT. Depending upon the data and how it is organized, as well as the table designed, one way may be easier or more convenient than the other. Some methods have been discussed in the referenced papers. Here I try to use simplified examples to illustrate step by step on how to build colorful tables. METHOD 1: ODS STYLE / PROC TEMPLATE SAS has provided a powerful tool, ODS, to enable users output their report to RTF, PDF or HTML files. Although HTML files will require more attention in the future, we will still focus on PDF files in this paper for our current needs. Simple codes below allow users to output the report with SAS default STYLE. ODS LISTING CLOSE; ODS PDF file='file name'; PROC REPORT...;... ODS _ALL_ CLOSE; ODS LISTING; Besides the default STYLE, SAS also provides some pre-defined styles, such as SASWEB, STATISTICAL, and ANALYSIS etc. Users can specify a STYLE name other than default in ODS PDF statement, e.g. ODS PDF file= 'filename' STYLE=SASWEB; Users also have the option to create their own STYLEs by redefining the pre-defined style elements and attributes to customize fonts, colors, and borders, etc. PROC TEMPLATE is the procedure for this purpose. Lauren Haworth [1] has explained how to use PROC TEMPLATE to modify STYLEs and gave some examples. You may refer to that paper if interested. We will skip this part in this paper. The advantage of using PROC TEMPLATE to customize STYLEs is that it can be saved and easily shared among users once the new STYLE is established. It can change the color of the table header and its contents, and also the color of the font and the background. However, it s difficult to set up such a STYLE for some special outputs that we will see in the later examples. 1

2 METHOD 2: PROC REPORT / CALL DEFINE A shortcut way to highlight a table is to change the style in PROC REPORT procedure. You may change the other attributes besides background color as well by using COMPUTE statement and CALL DEFINE statement in PROC REPORT. We will see how to change the background color, in other words highlight, with a simplified lab data as below: Range Range Abnormal PID Visit Lab Test Value Unit Low Low Flag 1001 BASELINE ALBUMIN 39 g/l N 1001 BASELINE ALT 35 U/L 0 55 N 1001 BASELINE ALKALINE PHOSPHATASE 154 U/L H 1001 BASELINE AST 33 U/L 0 45 N 1001 BASELINE BICARBONATE 29 mmol/l N 1001 BASELINE BILIRUBIN, TOTAL 8.6 umol/l N 1001 BASELINE CREATININE 62 umol/l N 1001 BASELINE SODIUM 137 mmol/l N 1001 CYCLE 1 DAY 1 ALBUMIN 41 g/l N 1001 CYCLE 1 DAY 1 ALT 29 U/L 0 55 N 1001 CYCLE 1 DAY 1 ALKALINE PHOSPHATASE 170 U/L H 1001 CYCLE 1 DAY 1 AST 33 U/L 0 45 N 1001 CYCLE 1 DAY 1 BICARBONATE 28 mmol/l N 1001 CYCLE 1 DAY 1 BILIRUBIN, TOTAL 8.6 umol/l N 1001 CYCLE 1 DAY 1 CREATININE 71 umol/l N 1001 CYCLE 1 DAY 1 SODIUM 134 mmol/l L 1001 CYCLE 2 DAY 1 ALBUMIN 38 g/l N 1001 CYCLE 2 DAY 1 ALT 24 U/L 0 55 N 1001 CYCLE 2 DAY 1 ALKALINE PHOSPHATASE 131 U/L N 1001 CYCLE 2 DAY 1 AST 21 U/L 0 45 N 1001 CYCLE 2 DAY 1 BICARBONATE 26 mmol/l N 1001 CYCLE 2 DAY 1 BILIRUBIN, TOTAL 5.1 umol/l N 1001 CYCLE 2 DAY 1 CREATININE 71 umol/l N 1001 CYCLE 2 DAY 1 SODIUM 137 mmol/l N Suppose we want to report the lab data with a table. The rows with abnormal high values are highlighted in red, and the rows with abnormal low values are highlighted in blue. The column of lab test names are highlighted in LIGHTYELLOW, and the column of visit date is highlighted in MISTYROSE The code of PROC REPORT is listed below: proc report data=db.clab nowd headline headskip spacing=1 split='~'; column pt visname labdate lbseq labtest sival siunit silo sihi labflag ; define pt / order width=5 'PID' left; define visname / order width=14 'Visit' left; define labdate / order width=10 'Visit Date' center; define lbseq / order noprint; define labtest / display width=25 'Lab Test' left; define sival / display width=8 'Value' right; define siunit / display width=10 'Unit' center; define silo / display width=8 'Range~Low' right; define sihi / display width=8 'Range~High ' right; define labflag / display width=10 'Abnormal~Flag' center; COMPUTE pt; 2

3 COMPUTE visname; COMPUTE labdate; COMPUTE labtest; CALL DEFINE(_COL_, "style", "STYLE=[BACKGROUND=LIGHTYELLOW]"); COMPUTE labflag; IF labflag='h' THEN CALL DEFINE(_ROW_, "style", "STYLE=[BACKGROUND=RED]"); COMPUTE silo; IF input(sival,best.) < silo THEN CALL DEFINE(_ROW_, "style", "STYLE=[BACKGROUND=BLUE]"); The keyword _ROW_ indicates the entire row will be highlighted. Similarly, the keyword _COL_ indicates the entire column will be highlighted. Please be noted that the STYLE= parameter can also be used to modify other attributes. For example, STYLE=[font_size=8pt font_weight=bold font_style=italic cellwidth=8mm] modifies the font size, weight, style and cell width. Readers may refer Pete Lund [1] or a complete list of ODS Style Attributes. For user s convenience, Lauren Haworth [2] attached a chart of color names at the end of her paper. The result is shown below. 3

4 If we just want to highlight the cells of lab value with abnormal flag equals to HIGH or LOW, the COMPUTE statement on the above can be changed as below. COMPUTE sihi; IF input(sival,best.) > sihi THEN CALL DEFINE('_c6_', "style", "STYLE=[BACKGROUND=RED]"); COMPUTE silo; IF input(sival,best.) < silo THEN CALL DEFINE('_c6_', "style", "STYLE=[BACKGROUND=BLUE]"); The trick for COMPUTE blocks of SIHI is that SIHI has to be behind SIVAL in the COLUMN statement. Because SAS read in the value of SIVAL first, and then compare with SIHI, so the variable has to be arranged in the right order. Otherwise, it will end up with an unexpected result. METHOD 3: PROC REPORT PLUS PROC FORMAT In order to highlight CELLs according to the value of the cells, a color format can be set up to hook up the values with colors. It will be very easy to use the color format to redefine STYLE in PROC REPORT. In the following example, lab abnormal flag is highlighted based on its value. proc format; value $ flgcolor "H"="RED" "L"="BLUE" "N"="SNOW"; 4

5 proc report data=db.clab nowd headline headskip spacing=1 split='~'; column pt visname labdate lbseq labtest sival siunit silo sihi labflag; define pt / order width=5 'PID' left; define visname / order width=14 'Visit' left; define labdate / order width=10 'Visit Date' center; define lbseq / order noprint; define labtest / display width=25 'Lab Test' left; define sival / display width=8 'Value' right; define siunit / display width=10 'Unit' center; define silo / display width=8 'Range~Low' right; define sihi / display width=8 'Range~High' right; define labflag / display width=10 'Abnormal~Flag' center STYLE = {BACKGROUND=$flgcolor.}; COMPUTE pt; COMPUTE visname; COMPUTE labdate; COMPUTE labtest; CALL DEFINE(_COL_, "style", "STYLE=[BACKGROUND=LIGHTYELLOW]"); 5

6 METHOD 4: ODS ESCAPECHAR MORE FLEXIBILITY So far, we have summarized the methods of highlighting a table by specifying the STYLE=option in PROC REPORT. Another more powerful and more flexible method is to use ODS ESCAPECHAR, which allows user to specify the style anywhere in the program, not only in PROC REPORT, but also in other procedures, in the definition of titles and footnotes, or maybe in the data sets. The ODS ESCAPECHAR statement defines a character, typically a caret (^) or tilde (~), to designate the beginning of formatting commands. For example, ods escapechar = '^'; Then user can attach the escape sequence ^S{} to the text where the format need to be changed. Two escape sequences ^S{} were used in the above code. The first ^S{} redefine the font size as 14 pt and background color as yellow, and the second ^S{} define the text following Title 1 as default format. S need to be capitalized in the ^S{} sequence. This method is found to be very practical and easy to use in some complicated situation. For example, in the following table, the lab tests of a patient are listed horizontally by visit. The test value, unit, lab range, abnormal flag are all combined into one cell per test per visit. With the first three methods, it is really hard and even impossible to highlight such cells. With the escape sequence ^S{}, it becomes a fairly easy job. When creating the data set to combine the lab value, unit, lab range, and abnormal flag, one just need to conditionally attach the sequence with proper background color definition to the combined value, according to the abnormal flag value. Without any special setting in PROC REPORT, the cell with abnormal lab value will be highlighted with the designated colors. Here below is the code to define style with the escape sequence in data step. Figure 5 shows the highlighted table. val=compress(sival) ' ' compress(siunit) ' (' compress(put(silo,best.)) ', ' compress(put(sihi,best.)) ') - ' compress(labflag); if index(upcase(labflag),"h") then val="^s={background=#ff8080}" trim(left(val)) " ^S={}"; else if index(upcase(labflag),"low") then val="^s={background=#8080ff}" trim(left(val)) " ^S={}"; After combining variables, embedding ESCAPECHAR ^S{} with desirable styles, and some other manipulation, the original dataset becomes the following. With the following SAS code, a beautiful PDF table is created, as show in Example 4. 6

7 %let linestr=pt=^s={font_weight=bold}1001^s={}; %let linestr=&linestr ^S={font_weight=bold}CHEMISTRY^S={}; proc report data=final nowd missing headline headskip spacing=1 split="~" contents=""; column id labgrp labtest vis1 vis2 vis3; define id/noprint; define labgrp/noprint; define labtest/flow id style(column)={cellwidth=&idlen.% font_size=1} style(header)={font_size=1 background=lightblue}; define vis1 / center flow style(column)={cellwidth=&vlen.% font_size=&vfsize} style(header)={font_size=&vfsize background=lightblue}; define vis2 / center flow style(column)={cellwidth=&vlen.% font_size=&vfsize} style(header)={font_size=&vfsize background=lightblue}; define vis3 / center flow style(column)={cellwidth=&vlen.% font_size=&vfsize} style(header)={font_size=&vfsize background=lightblue}; compute before _page_ / style=[background=honeydew just=left]; line "&linestr"; endcomp; CONCLUSION Four methods to highlight PDF output have been presented in this paper. These methods can also be used to modify other attributes. Each method has its own advantages and disadvantages. You may select an appropriate method according to your special needs and programming habits. Some simple examples are given to illustrate the basic ideas of the methods. You may refer to the reference behind to get more detailed information and further explore the powerful tools provided by ODS. 7

8 REFERENCE [1] Lund, Pete, PDF Can be Pretty Darn Fancy Tips and Tricks for the ODS PDF Destination, SUGI 31, Paper [2] Haworth, Lauren "SAS with Style: Creating your own ODS Style Template for PDF Output.", SUGI 30, Paper [3] Boberg, Wendy, PROC REPORT in Color What s Your STYLE?, SAS Global Forum 2008, Paper ACKNOWLEDGMENTS: SAS and all other SAS Institute Inc. product or service names are registered trademarks or trademarks of SAS Institute Inc. in the USA and other countries. indicates USA registration. CONTACT INFORMATION Xuefeng Yu Celgene Corporation 86 Morris Ave Summit, NJ Work Phone: (908) Fax: (908) [email protected] 8